Perusing the Parts List

It’s time to go shopping for those electronic parts you use to build the circuits and assemble all those LEDs into dancing dolphins. This is where we give you the parts lists for the circuit and the LED arrays.

A circuit with a porpoise

The circuit that controls the timing of your light show involves the following parts, several of which are shown in Figure 10-5:

47 kohm resistor (R1)

470 kohm resistor (R2)

LM555 timer (IC1)

4017 decade counter (IC2)

1 microfarad electrolytic capacitor (C1)

0.1 microfarad ceramic capacitor (C2)

Five 2N3053 transistors (Q1, Q2, Q3, Q4, Q5)

Breadboard (830 contacts)

Six 2-pin terminal blocks

An assortment of different lengths of prestripped short 22 AWG wire

figure 10-5

Making your dolphins boogie

Here’s your shopping list for building your dancing dolphin light display. This part of the project involves the following parts, several of which are shown in Figure 10-6:

190 orange T-1 3⁄4 LEDs

95 220 ohm resistors

Six 5⁄8" 6-32 flathead screws

Six 2" standoffs with 6-32 threads

Several feet of black 20 AWG wire

Several feet of red 20 AWG wire

A four pack of AA batteries with an on/off switch

An assortment of different lengths of prestripped short 22 AWG wire

Seven wire clips

Two sheets of 1⁄4" plywood measuring 2' high x 4' wide

Liquid electrical tape

figure 10-6